package com.zhoukx.netty.grantChat;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;

import java.util.Scanner;

public class GroupChatClient {

   private  final String host;
   private  final int port;


    public GroupChatClient(String host, int port) {
        this.host = host;
        this.port = port;
    }

    public  void run(){

        NioEventLoopGroup group = new NioEventLoopGroup();

        try {
            Bootstrap bootstrap = new Bootstrap().group(group)
                    .channel(NioSocketChannel.class)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            // 得到pipeline
                            ChannelPipeline pipeline = ch.pipeline();

                            // 加入相关的handler
                            pipeline.addLast("decoder",new StringDecoder());
                            pipeline.addLast("encoder",new StringEncoder());

                            // 加入自定义handler
                            pipeline.addLast(new GroupChatClientHandler());

                        }
                    });

            ChannelFuture sync = bootstrap.connect(host, port).sync();

            // 得到管道
            Channel channel = sync.channel();

            System.out.println("-------"+channel.localAddress()+"------------");

            //客户端需要输入信息,创建扫描
            Scanner scanner = new Scanner(System.in);

            while (scanner.hasNextLine()){

                String msg = scanner.nextLine();

                // 通过channel发送到服务器
                channel.writeAndFlush(msg+"\r\n");
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            group.shutdownGracefully();
        }

    }

    public static void main(String[] args) {
        new  GroupChatClient("127.0.0.1",7002).run();
    }
}
